Weaving machine



Nov. 3, 1942. Q Q BRUESTLEv 2,300,533

WEAVING MACHINE Filed Aug. 25, 1941 Patented Nov. 3, 1942 WEAVING MACHINE Carl 0. Bruestle, Rahway,

Warner Corporatibn,

of Illinois N. J., assigner to Borg.. Chicago, Ill., a corporation application August 23, 1941, serial No. 408,021

(c1. 14o-s) 7 Claims.

This invention relates to weaving machines, and particularly to an improved comb assembly having special application to the weaving of wire fabric.

In the practice heretofore followed, particularly as disclosed in Ewing U. S. Patent 2,223,317, it has been found necessary during the twisting cperation performed by the quills to hold the comb teeth against the back plate by means of a Wedge or cam relationship. This construction is expensive to fabricate, since it must be formed with extreme precision and is ob-jectionable in operation among other reasons in the fact that a certain amount of hammering is unavoidable.

It is an object of this invention to eliminate the objectionable features above outlined, and hence this invention in its more specific aspects may be properly considered as an improvement over the construction shown in the above Ewing patent.

It is an object to provide an improved comb assembly for directing the introduction of the transverse filler elements and holding the same in position while the longitudinally extending warp elements are manipulated for fastening successive filler elements in place.

It is a more detailed object to provide in a comb assembly of the above type including a back plate and a comb having fingers or teeth slidable upon one face of the plate, an efficient arrangement for maintaining the fingers or teeth in engagement with the back plate throughout the relative movement therebetween, and particularly during the manipulation of the warp elements.

It is a still more detailed object to provide a novel spring and guide supporting arrangement for constantly urging the comb member proper of a weaving head comb assembly into engagement with its associated back plate in such a way that the transversely extending ribbon-like ller wires are successively held in their intended relationship to the warp wires while the latter are being manipulated for the purpose of fastening the ller ribbons in position, such improved arrangement making it unnecessary to provide the formerly employed wedge relationship between the comb teeth and the back plate.

The above and other objects advantages and uses of my invention will become apparent from a reading of the following specification taken in connection with the accompanying drawing which forms a part thereof and wherein:

The single figure is a longitudinal broken away cross section of a weaving head incorporating a the above Ewing patent, a stationary `head assemblyA Il supports Warp wire feeding and twisting quills I2 effective in cooperation with my improved comb assembly indicated generallyk at I5, for producing integrating twists I6 between the wires Il of each pair of warp wires for the purpose of fastening in place thetransversely introduced filler ribbons I8.v l

Comb assembly I5l comprises a relatively thin back plate member 20 having an enlarged base portion 2I `and formed with two generally parallel offset -guide surfaces 23 and 2t. The rear side of plate 26 is recessed as indicated at 26 in order to admit the wedge-shaped discharge ends of quills I2 to a position closely adjacentA slots or perforations 2l through which pass warp wires Il from the discharge ends of the quills. For directing the transversely introduced filler ribbons I8 into position between adjacent warp wire Il, there is formed in the face 23 of plate 20 a channel 28 having a rectangular cross section corresponding to that of the ribbon-like ller element. In order to confine the ribbon element I8 within channel 28, particularlyvduring the formation of the integrating twists I3 as well as for' releasing the filler ribbon I 3 to advance the fabric, there is provided a comb member proper 3| having reciprocable sliding engagement with face 23 of back plate 2l). Teeth 32 extend from comb member 3| between adjacent pairs of warp wires Il with the'rear face thereof engaging guide surface 23 for confining ller ribbon I3 within channel Y28.

It has been found, particularly `during the quill twisting operation, that there is al tendency for the teeth 32 to be forced away from engagement withthe guide surface 23 resulting in an imperfection in the fabric. This lack of firm engagement between the teeth 32 and the guide surface 23 may also result from other factors including wear and misalignment in the absence of some preventative arrangement.

In order to avoid the above difficulty, I have provideda novel support and guide arrangement for comb` member 3|, including supporting member 4I having a guide surface 42 cooperating withl surface 23 of back plate 2i] and carrying in thev upper portion thereof adjustable guide. pins t3!V reciprocable in cylindrical guide 44 andsupporting comb 3l on the forward end thereof, preferably by being threaded thereto. For urging comb 3| into engagement with guide surface 23, there is interposed between comb 3l and supporting member il compression coil springs 5, one end of which is preferably received in a cylindrical depression 46 within comb 3l, and the other end within similar cylindrical depression All within support 4l. It will also appear that any desired pressure of engagement between the comb teeth 32 and the back plate 20 may be obtained by 'the choice and number of springs having the requisite compression characteristics.

From the above it will be seen that the present construction may be readily assembled and disassembled, the guide pin 43 being easily removed by applying a suitable tool to the rear end thereof and unscrewing the same.

Since in all other respects the present construction is completely set forth in the above Ewing patent, the same should be referred toforany further detailed understanding that may be desired.

While my invention has been disclosed in connection with a specific embodiment thereof, it is to be understood that 'this is by way of example rather than vby way of limitation, and that the invention is defined by the appended claims which should be given a scope as broad as is consistent with the prior art.

I claim: 'Y

1. In al weaving head assembly including a perforated back plate for the passage therethrough of warp elements, means for guidably directing a transverse filler elementbetween the warp elements and rmeans for manipulating said warp elements to fix said filler element therebetween, said filler element directing means comprising comb means having teeth engaging said back plate, said teeth extending between said warp elements for confining sai-d filler elements in position, and spring meansfor urging said comb teeth into engagement with said plate.

` 2'. In a weaving head assembly including a perforated back plate for the passage therethrough of warp elements, means for guidably directing transversely introduced filler elements between the warp elements, and means for manipulating said warp elements to fasten said filler elements therebetween, said filler element directing means comprising comb means having teeth slidable on said vback plate for moving Vsaid teeth into and out of position between said warp wires, and means effective to hold said teeth in engagement with said back plate for maintaining the said filler element in place during said manipulating operation. 3..In a wire weaving headrassembly including a perforated back plate for the passage therethrough of warp wires, an` open channel in the forward face of said back plate for guidably directing transversely introduced filler wires into position between the warp wires, and means for manipulating said warp wires to fasten said filler wires therebetween, said filler wire directing means comprising comb means including teeth engaging the face of said back-plate across said channel, said teeth being slidable on said plate into and out of position between said warp wires for closing and opening said channel, and means holding said teeth against said plate for maintaining said ller element in placeduring said manipulating operation, said Ylast named means comprising compression spring means.

4. In a weaving head assembly inoludingla perforated back plate for the passage therethrough of warp elements, means for guidably directing transversely introduced ller elements between the warp elements, and means for manipulating said warp elements to fasten said filler elements therebetween, said ller element directing means comprising comb means slidable on said back plate and having teeth movable into and out of position between sai-d warp wires and means effective to hold said teeth in engagement with said bac-k plate for maintaining said filler elements in place during said manipulating operation, said last named means comprising means defining a guideway extending in a direction generally parallel to the` path of reciprocation of said comb teeth on said `back` plate, a supporting member located in generally opposed relation to said comb means and having a guide surface for cooperation with said guideway, a plurality of guide pins extending at right angles to the path of reciprocation of said combteeth and functioningto support said comb, means on said supporting member while providing for guided movement of said comb means at right angles to said path of reciprocation, and compression spring means interposed between said supporting member and said comb means for urging the latter into engagement with said back plate with a predetermined force throughout the relative movement therebetween.

5. In a weaving head assembly including a perforated back plate for the passage therethrough of' warp elements, means for guidably directing transversely,introduced filler elements between the warp elements, and means for manipulating said warp velements to fasten said filler elements therebetween, said filler element directing meansv comprising comb means having teeth slidable on said back plate for moving said teeth into and out of position between said warp wires, and means effective to hold said teeth in engagement with said back plate for maintaining said filler element in place during said manipulating operation, said last named means comprisinga supporting member formed with a guide surface, said back plate having an enlarged base formed with a guideway extending generally parallel to the directionv of reciprocation of said teeth on said back plate for receiving said supporting member guide surface in guided relation thereto, a plurality of guide pins mounted for guided reciprocation in said supporting member and carrying l said comb member on the forward ends thereof', and compression spring means disposed between said supporting member and said comb means for vurging the latter intoconstant engagement with said back plate throughout the reciprocation of said supporting member and said comb on the respective surfaces engaged thereby.

6. n a wire fabric weaving head assembly including a back. plate formed with a series of perforations therethrough for the passage of a plurality of pairs of warp wires and-formed on the forward face thereof with a transversely extending open rectangular guide channel for guidably receiving and directing transversely introduced ribbon-like filler wires into position between said warp wires, and means for manipulating said warp wires to fasten said filler wires therebetween, cornb means including teeth engaging the face of said plate across said channel for reciprocation on said face to move said teeth into and out of position between successive pairs of warp wires, and means for holding said teeth against said plate formaintaining saidfiller Wire in posi-.

tion during said manipulating operation, said last named means comprising a supporting assembly for said comb means including a member positioned in opposed spaced relation to said comb means, a plurality of guide and supporting pins having a first end portion mounted for guided recprocation in said supporting member at right angles `to the path of reciprocation of said comb means on said back plate and having the other ends thereof fastened to said comb means, and compression spring means interposed between said supporting member and said comb means for urging the latter into constant engagement with said back plate, and means for guiding said supporting member with respect to said back plate in a path generally parallel to the path of reciprocation of said comb on said back plate.

7. In a wire fabric weaving head assembly including a back plate having a series of perforations therethrough for the passage of warp wires, means dening a comb-like member having teeth arranged to engage the forward face of said back plate between successive ones of said perforations and having a reciprocable movement from a position wherein said teeth extend between successive warp Wires extending through said perforations to a position withdrawnji therefrom, a transverse channel-like recess fornfied between the forward face of said .back plat? and the adjacent surface of said comb teeth vithen in position between said warp wires, saict', channel being effective to guide successive filler wires into position between said warp wires''? a supporting member in spaced opposed relation to said teeth and provided with means for guiding the same in parallel relation to the forlward face of said plate, and means supporting; said comb on said member and holding said teeth in engagement with said plate during the movement of said teeth into and out of position between said warp wires, said means comprising a plurality of compression coil springs interposed between said reciprocable member and said comb.

CARL O. BRUES'ILE. 

